About Us

The Kosak Piano Studio has provided quality music instruction to Long Islanders since 2001. Its founder, Johanna Kosak, has over 20 years experience teaching piano to students of all ages and level of ability.


Congratulations to students who participated in Formal Recital this past weekend at Sachem Library.
All did great job and we can all appreciate their dedication and hard work.

Michael Canudas, Britney Bourdeau, Dorothy Pierre, Sophie Divaris, Marina Divaris, Harry Divaris,
Kieran Parnell, Hannah Kosak, Natalia Giunta, Noah Giunta, Joseph Monem, Michael Perrone, and Lexia Lindsay

Teacher's News:

Three world premiere pieces have been written for Johanna Kosak's Amicizia trio: Variations and Soliloquies by Robert Fleisher, What A Ride! by Tim Shirmer, and Trio (2012) by Durwynne Hsieh. These pieces were premiered at Columbia College, Parkland College, and the University of Illinois last spring and scheduled for a first radio broadcast on CJSR Canada’s Avant-Garde & Beyond programs.
SPTF Piano Competition 2015

Congratulations to

Dorothy Pierre 1st place winner of late intermediate level

Mark Griffin 2nd place winner of the beginner level
Lang Lang 101 Pianists Event

Following students were chosen by audition process to perform with Lang Lang in "101 Pianists" Program held at the Tilles Center in October 2014 conducted by Johanna Kosak as a lead teacher and coordinator.

Congratulations to our students:
Lourna Diejuste
Benjamin Diejuste
Marina Divaris
Harry Divaris
Emily Griffin
Hannah Kosak
Kate Parnell
Rod Paul
Dorothy Pierre